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10th Class Mathematics Quadratic Equations Question Bank Quadratic Equation

  • question_answer
    When is a real number 'a' called the zero of the polynomial f(x)?

    A)  \[f\left( 0 \right)=a\]      

    B)  \[f\left( a \right)=f\left( 0 \right)\]      

    C)  \[f\left( a \right)=0\]                   

    D)  \[~f\left( \pm a \right)=\pm a\]

    Correct Answer: A

    Solution :

    (a): Let the roots be \[\alpha \]and \[\alpha +1\]. \[\alpha +(\alpha +1)=\]p, i.e., \[2\alpha +1=p\] \[(\alpha )(\alpha +1)=\frac{q}{1}=q\]   


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